Which of the Following Statements Is True

Which of the following statements is true?

A) The Work in Process Inventory account is the focal point of process costing.
B) Labor costs are accounted for differently from overhead costs in a process costing system.
C) Equivalent units usually are computed for direct materials and overhead combined.
D) To compute unit costs using the FIFO process costing approach, total costs of direct materials, direct labor, and overhead that have been accumulated in the Work in Process Inventory account or accounts are divided by the units worked on during the period.